Sunset Jasper Slab Great Colors. Weighs about 5.13 Oz. Measures about 4.5" x 3" x .256" Thick or 6.51 MM Thick. This is a new find for the internet. Found in the N. Cady Mountains in San Bernardino County, Calif. Orange, yellow and red colors. Photographed wet and slabs are at an angle to stop some glare so slabs in pictures look smaller. I see a potential crack.